Background: Planning surgical procedures of the lower leg benefits from considering the possibility of an aberrant anterior tibial artery (AATA), but previously published data on the frequency of this anatomic variant shows heterogeneity. We assessed the prevalence of AATA in a Latin American cohort using magnetic resonance imaging (MRI) and compared these with other studies reported in the literature.
Methods: We retrospectively included consecutive patients who had undergone multiplanar knee MRI at a radiology department in Lima, Peru. The MRI protocol included coronal T1 weighted, axial, sagittal and coronal proton density fat-saturated (PDFS) and sagittal T2 weighted images. Two experienced radiologists assessed all images and were blinded to each other's findings. The frequency of the AATA was compared to previous cohorts. A scoping review was undertaken to provide an overview of previously published data on the prevalence of ATAA.
Results: We analyzed 280 knee MRI examinations of 253 patients (median age 41 years (IQR 31-52), 53.8% male). The aberrant anterior tibial artery variant was present in 8 of 280 (2.9%) evaluated knees, resulting in a prevalence of 3.2% in our study population. The PDFS sequence in the axial or sagittal orientation was most effective to identify AATA. The frequency of AATA in the reviewed literature using different radiological modalities ranged from 0.4 to 6% (median 1%, IQR (0.5-2.3%).
Conclusions: The AATA is a frequent vascular variant that can be detected by MRI in the preparation of invasive interventions of the lower leg.
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http://dx.doi.org/10.1186/s12891-021-04801-9 | DOI Listing |
Int Med Case Rep J
January 2025
Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.
Purpose: To compare the outcomes of two different surgical planning strategies for topography-guided repair of post-LASIK ectasia.
Methods: This is a case report of a patient presenting with post-LASIK ectasia. A retrospective chart review was used to collect details of the ophthalmic exam, as well as ocular imaging such as anterior segment optical coherence tomography and Scheimpflug corneal tomography.
Eye (Lond)
January 2025
Bio-manufacturing Engineering Laboratory, International Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong, China.
Objectives: To propose and evaluate a novel, non-invasive approach for enduring corneal astigmatism correction based on topography-guided, patterned, customized riboflavin-ultraviolet A corneal collagen crosslinking (CXL).
Methods: Astigmatism was modelled on both eyes of rabbits. A randomly selected eye of each rabbit was treated by the proposed CXL procedure with another eye as control.
Epilepsy Behav
January 2025
Epileptology Unit Reference Center for Rare Epilepsies Department of Neurology AP-HP Pitié-Salpêtrière Hospital Paris France; Rehabilitation Unit AP-HP Pitié-Salpêtrière Hospital Paris France; Paris Brain Institute (ICM), Sorbonne-Université, Inserm U1127, CNRS 7225, Paris F-75013 France; Université Paris Sorbonne, Paris, France. Electronic address:
This narrative review aims to identify and summarize existing research to better understand the pathophysiological and neuroanatomical bases of social cognition deficits in people with epilepsy. The neuroanatomical basis of social cognition was primarily examined in healthy subjects. In healthy individuals, social cognition is supported by a complex network of interconnected brain regions.
View Article and Find Full Text PDFJ Neurol
January 2025
Centre de Génétique Humaine, Centre Hospitalier Universitaire de Besançon, Besançon, France.
Introduction: The MAPT gene encodes Tau, a protein mainly expressed by neurons. Tau protein plays an important role in cerebral microtubule polymerization and stabilization, in axonal transport and synaptic plasticity. Heterozygous pathogenic variation in MAPT are involved in a spectrum of autosomal dominant neurodegenerative diseases known as taupathies, including Alzheimer's disease, Pick's disease, fronto-temporal dementia, cortico-basal degeneration and progressive supranuclear palsy.
View Article and Find Full Text PDFBrain Commun
December 2024
Department of Radiology, Aerospace Center Hospital, Beijing 100049, China.
The posterior cingulate cortex and hippocampus are the core regions involved in episodic memory, and they exhibit functional connectivity changes in the development and progression of Alzheimer's disease. Previous studies have demonstrated that the posterior cingulate cortex and hippocampus are both cytoarchitectonically heterogeneous regions. Specifically, the retrosplenial cortex, typically subsumed under the posterior cingulate cortex, is an area functionally and anatomically distinct from the posterior cingulate cortex, and the hippocampus is composed of several subregions that participate in multiple cognitive processes.
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